Image Quality of 256-Slice Computed Tomography for Coronary Angiography.

Purpose: To assess the image quality of 256-slice computed tomographic angiography (CTA) and to identify possible impact factors associated with image quality.

Methods: From November 2009 to January 2010, 506 patients underwent 256-slice CTA at our institute. A total of 451 patients were enrolled in our study, after 55 patients were excluded because of prior bypass surgery and stenting.

Diagnostic Performance of 64- versus 256-Slice Computed Tomography Coronary Angiography Compared with Conventional Coronary Angiography in Patients with Suspected Coronary Artery Disease.

Pupose: The newer 256-slice computed tomography coronary angiography (CTCA) has the capability of improving diagnostic performance in the detection of obstructive coronary artery disease (CAD) compared to 64-slice CTCA. The aim of this study was to compare the diagnostic performance of 64- versus 256-slice CTCA in two similar populations.

Methods: Our study included 120 consecutive patients who were referred for CTCA and subsequently underwent conventional coronary angiography (CCA).

The diagnostic accuracy of 256-row computed tomographic angiography compared with invasive coronary angiography in patients with suspected coronary artery disease.

Aims: To assess the diagnostic accuracy of 256-row computed tomographic angiography (CTA) in patients with suspected coronary artery disease (CAD). Non-invasive imaging of the coronary artery by CTA has increasingly been used in recent years. The accuracy of 256-row CTA has not yet been studied.